Bow sight



April 9, 1963 D. JACOBSON ETAL 3,084,442

BOW SIGHT Filed Aug. 9, 1960 Amllnlpi.

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United States Patent Ofiice 3,384,442 Patented Apr. 9, 1963 3,084,442BGW SIGHT Donald .i'acobson, B l, and Isaac Davis, 915 4th St. 8., bothof St. James, Minn. Filed Aug. 9, 1960, Ser. No. 48,448 2 Ciainns. (Ci.33-46) This invention relates to a sighting device, and moreparticularly to a sight for an archers bow.

The object of the invention is to provide a bow sight which can bereadily and conveniently adjusted, and wherein after the parts have beenadjusted to the desired location, accidental shifting or movementthereof will be prevented.

Another object of the invention is to provide a bow sight which willaccommodate different types of sights such as a tapered hooded postsight, a prism, a cross bar or the like, and wherein the hooded sight isadapted to be tapered to prevent shadows and glare from adverselyaffecting the pin sight.

Another object of the invention is to provide a bow sight which has ameans for accomplishing a fine adjustment thereof so that for examplewinda-ge can be compensated for, and wherein suitable scale markings areprovided for indicating yardage and adjustment, the bow sight beingconstructed so that slippage is prevented and wherein the user will beable to use the device with increased speed and accuracy.

A further object of the invention is to provide a bow sight which isextremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of thefollowing description.

In the accompanying drawings, forming .a part of this application, andin which like numerals are used to designate like parts throughout thesame:

FIGURE 1 is a front elevational view of the bow sight, constructedaccording to the present invention.

FIGURE 2 is a sectional view taken on the line 2-2 of FIGURE 1.

FIGURE 3 is an end elevational view of the bow sight, with portions ofthe bow broken away and in section.

FIGURE 4 is an elevational view of the spring member.

FIGURE 5 is a sectional view taken through the bow sight of the presentinvention.

FIGURE 6 is -a side elevational view showing the sighting device of thepresent invention mounted on a bow.

Referring in detail to the drawings, the numeral 10 indicates aconventional bow which includes the intermediate portion 11, FIGURE 6,and the numeral 12 indicates a portion of an arrow which is adapted tobe engaged by the usual string 13 of the how 10.

According to the present invention there is provided a bow sight whichis indicated generally by the numeral 14, and the bow sight 14 includesan elongated bar 15 that comprises a main body portion 16 of rectangularfiat configuration, and scale markings or indicia 17 are ranged alongthe longitudinal side edges of the main body portion 16. The numerals 18and 21 indicate upper and lower end portions of reduced size, and theupper portion 18 is longer than the lower portion 21, and these portionsare provided with apertures or openings 19 and 22 respectively wherebysuitable securing elements such as screws can be extended through theseapertures and into engagement with the bow 10 in order to fasten thesight 14 in place on the bow.

As shown in the drawings a tape 23 is adapted to extend longitudinallyalong the outer or upper surface of the main body portion 16 and thetape 23 may be secured to the bar in any suitable manner as for exampleby means of a suitable adhesive, and this tape 23 is provided withmarkings such as the markings 24 thereon.

The numeral 25 indicates a block which is adjustably connected to thebar 15 for sliding movement therealong, and the block 25 includes sideportion-s 26 as well spaced apart flanges 27, and the numeral 28indicates the space between the flanges 27. The block 25 is providedwith a slot or opening 30 therein through which extends the bar =15. Thenumeral 29 indicates a recess in a shoulder 31 on the block 25, and therecess 29 provides clearance space for the tape 23.

The numeral 32 indicates a spring member which includes a major section33 which extends through the slot 30, and the spring member 32 furtherincludes end portions 34 and 35 which are arranged as shown in FIGURE 4.

The numeral 37 indicates a locking screw which is adapted to extendthrough one of the spaced apart threaded openings 36 in the block 25,and the inner end of the locking screw is adapted to engage the springmember 32. as later described in this application.

As shown in the drawings, there is provided an adjustable substantiallyU-shaped support member which is indicated generally by the numeral 38,and the support member 38 includes a pair of spaced apart legs or stems39 and 40. The stems 39 and 40 traverse bores in the block 25 so thatthe support member 38 is mounted on the block 25 for sliding back andforth movement transversely of the bar 15. The stem 39 is threadedexternally, While the stem 44 is smooth, and the support member 38further includes a bight or arcuate section 41, FIGURE 1. The numeral 42indicates a tapered sight which is adapted to be mounted in or connectedto the arcuate section 41 in any suitable manner, and a pin sight 43 maybe suitably affixed to the tapered sight 42.

The shoulder or enlargement 31 comprises a pair of spaced apartprotuberances or projections 44 which are shaped to define or provide aspace or chamber 45 therebetween, and the numeral 46 indicates a knurledactuator or nut which abuttingly engages the walls of the chamber 45 andthreadedly engages the stem 39, as shown in the drawings.

The numeral 47 indicates a lock means embodying a screw member whichengages a threaded opening in the shoulder 31 and the inner end of thescrew member 47 is adapted to engage the stem 40 so as to maintain orlock the support member 38 in its various adjusted positions.

From the foregoing, it is apparent that there has been provided a bowsight, land with the parts arranged as shown in the drawings, it will beseen that the sight 14 is adapted to be attached to a how such as thebow 10, and the sight 14 is adapted to be secured in place by means ofsuitable securing elements such as the screws 29 which extend throughthe apertures 19 and into engagement with a portion such as theintermediate portion 11 of the bow It). The sight 14 includes a bar 15which has the main body portion 16 of rectangular configuration andthere is provided a scale marking 17 along the longitudinal edgesthereof. The block 25 is adjustably mounted on the bar 15, and byloosening the screw 37, the block 25 and its associated parts can bemoved up or down on the bar 15, and after the block has been moved tothe desired location, the screw 37 is tightened in order to maintain theblock 25 immobile in its desired position.

In addition, by loosening the set screw 47 so that the inner end of theset screw 47 is out of engagement with the stem 40 of the support member48, the actuator 46 can be manually turned, and since the actuator 46 isarranged in threaded engagement with the stem 39, it will be seen thatthe support member 38 can be moved in or out with respect to the block25 as the actuator 46 is rotated, and since a sight such as the sight 42is mounted in the arcuate section 41 of the support member 38, it willbe seen that this manual rotation of the actuator 46 will permit thesight 42 to be arranged at the desired location. The pin sight 43 issuitably afiixed to the sight 42 whereby'this member can be arranged atthe desired location in order to insure that the user can sighttherethrough whereby the arrow 12 can be shot with increased accuracy.After the member 38 has been moved to the desired location, by means ofthe actuator 46, the set screw 4'7 is adapted to be tightened in orderto prevent accidental shifting or movement of the support member 38.

The parts can be made of any suitable material and in dilferent shapesor sizes.

The bow sight of the present invention has certain important advantagesor features which are not found in' prior similar devices. For examplethe bar 15 is adapted to be made of a suitable material such as aluminumand is adapted to be finished in chrome so as to prevent glare and thispermits writing or markings thereon. The upper end 18 is longer than thelower end 21 for easier fastening to the how. The graduation marks orindicia 17 on the bar are arranged so that every third marker is longerand this permits the user to more easily tell when the block is moved.The machined block 25 makes it possible to put in a marking tape such asthe tape 23. The overall length of the bar may be seven and five-eighthsinches, one-half inch wide and oneeighth of an inch thick.

In addition, the sight block is adapted to be made of aluminum and hasthe butter spring 32 which serves to hold the sight block from slippingwhen the locking screw 37 is loosened for sighting or adjustment of thedevice. The windag'e adjustment includes the screw type setting andlocking nut, that is it includes the actuator 46 as well as the lockingmember 47 and the member 47 serves to hold the support member in a fixedposition after setting. The buffer spring 32 can be used on either sidefor right or left hand users. The tightening screw 37 when tightenedagainst the buffer spring 32 locks the block 25 in place. The threadedholes 36 are arranged in all four corners of the block so that the userhas an optional arrangement or choice as to where the tightening screw37 is to be located.

In addition as shown in FIGURE for example, the block 25 is recessed asat 29 so that a tape such as a quarter-inch tape can be used for markingif one desires to use the tape.

The wireloop 411 permits the use of either a tapered hooded post sightsuch as the sight 42, or else a prism, or a cross bar can be used as theuser desires. The hooded sight such as the sight 42 is tapered so as tokeep shadows and glare on the pin sight 43 to a minimum.

As previously stated, one stem 39 of the wire loop or support member 38is threaded for fine adjustment sideways for windage by the use of thethree-eighths inch diameter knurled nut or actuator 46 and this is animportant aspect or feature of the bow sight of the present invention.The knurled stem screw 47 tightens down on the stem'40.

The markings such as the markings 17 and 24 indicate yardage andadjustment can be made to permit the arrow to be fired or shotaccurately and readily. The

various tightening screws insure that accidental slippage will beprevented or minimized, and also speed and accuracy for the user will beinsured.

The space 28 between the flanges 27 may be approximately three-eighthsof an inch in size, that is the distance between the flanges 27 may bethree-eighths of an inch, but this dimension may vary as desired.

The end portion 18 is longer than the portion 21 for the purpose ofapplying tape to the how so that the sight can be aligned beforescrewing into the bow.

As shown in FIGURE 4 for example, the ends of the spring 32 are shapedas at 34 and 35 and a portion such as the portion 35 prevents the springfrom accidentally falling out of its proper location or position.

Minor changes in shape, size and rearrangement of details coming withinthe field of invention claimed may be resorted to in actual practice, ifdesired.

What is claimed is:

1. In a bow sight including an elongated bar adapted for attachment to abow, calibration indicia carried by the bar, a block mounted on the barfor sliding move ment therealong and means for selectively positioningsaid block on said bar, a sight support member of substantially U-shapedconfiguration having its legs mounted in said block for sliding movementtransversely of said bar, the bight of said member being adapted todetachably hold a sight element, one of the legs of said support memberbeing threaded, and a knurled nut on the threaded leg engaging saidblock and operable when rotated to move said member relative to saidblock.

2. In a bow sight including an elongated bar adapted for attachment to abow, calibration indicia carried by the bar, a block mounted on the barfor sliding movement therealong, and means for selectively positioningsaid block on said bar, a sight support element of substantiallyU-shaped configuration having its legs mounted in said block for slidingmovement transversely of said bar, the bight of said member beingadapted to detachably hold a sight element, one of the legs of saidsupport member being threaded, a knurled nut on the threaded legengaging said block and operable when rotated to move said memberrelative to said block, and lock means carried by said block engageablewith the other leg of said member for releasably holding said member inany position of its adjusted movement.

References Cited in the file of this patent UNITED STATES PATENTS1,961,517 Klopsteg June 5, 1934 2,212,884 Polasik Aug. 27, 19402,431,826 Pozar Dec. 2, 1947 2,574,599 Stieber- Nov. 13, 1951 2,654,152La Vire Oct. 6, 1953 2,664,078 Irwin Dec. 29, 1953 2,724,186 Lenart Nov.22, 1955 2,742,702 Williams Apr. 24, 1956 2,833,041 Reno May 6, 19582,867,042 Sutton Jan. 6, 1959 2,875,522 Merrill :et a1. Mar. 3, 19592,941,296 Grandt June 21, 1960 OTHER REFERENCES Archery, April 1957,volume 29, Number 4, page 57, Ad for New Deluxe.

Jiffy Bow Sight and page 63, Ad for Victor Bow-Sites and Prisms.

Article by M. A. Koleda in American Machinist, Jan. 13, 1958, page 125.

1. IN A BOW SIGHT INCLUDING AN ELONGATED BAR ADAPTED FOR ATTACHMENT TO ABOW, CALIBRATION INDICIA CARRIED BY THE BAR, A BLOCK MOUNTED ON THE BARFOR SLIDING MOVEMENT THEREALONG AND MEANS FOR SELECTIVELY POSITIONINGSAID BLOCK ON SAID BAR, A SIGHT SUPPORT MEMBER OF SUBSTANTIALLY U-SHAPEDCONFIGURATION HAVING ITS LEGS MOUNTED IN SAID BLOCK FOR SLIDING MOVEMENTTRANSVERSELY OF SAID BAR, THE BIGHT OF SAID MEMBER BEING ADAPTED TODETACHABLY HOLD A SIGHT ELEMENT, ONE OF THE LEGS OF SAID SUPPORT MEMBERBEING THREADED, AND A KNURLED NUT ON THE THREADED LEG ENGAGING SAIDBLOCK AND OPERABLE WHEN ROTATED TO MOVE SAID MEMBER RELATIVE TO SAIDBLOCK.